Varies...: Most commonly it is from either trauma that can result in increased pressures in the chest or rib fractures that tear the lung. The other common source is bleb or bullous disease of the lung. Imagine an overinflated balloon ready to pop. Something causes it to have increased pressure and air then leaks out to cause the lung to collapse. Other reasons can include cancer and bad emphysema.
Answered 5/11/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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